/*
* @Author: wanghongfucoder
* @Date:   2017-03-23 09:55:03
* @Last Modified by:   wanghongfucoder
* @Last Modified time: 2017-03-23 10:12:31
*/

public class OperationSubstract implements Strategy {
	public int doOperation(int num1,int num2){
		return num1-wnum2;
	}
}